Which set of leads best represents a lateral MI?

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Multiple Choice

Which set of leads best represents a lateral MI?

Explanation:
A lateral myocardial infarction involves the lateral wall of the left ventricle, mainly supplied by the left circumflex artery. On an ECG, the lateral view is seen in leads I and aVL, plus the left-sided chest leads V5 and V6. When a lateral MI occurs, ST elevations appear in these leads, reflecting ischemia of that lateral region. The other lead sets map to other wall territories: inferior (II, III, aVF), septal (V1-V2), and anterior (V3-V4). So the combination that best represents a lateral MI is the set that includes I, aVL, V5, and V6.

A lateral myocardial infarction involves the lateral wall of the left ventricle, mainly supplied by the left circumflex artery. On an ECG, the lateral view is seen in leads I and aVL, plus the left-sided chest leads V5 and V6. When a lateral MI occurs, ST elevations appear in these leads, reflecting ischemia of that lateral region. The other lead sets map to other wall territories: inferior (II, III, aVF), septal (V1-V2), and anterior (V3-V4). So the combination that best represents a lateral MI is the set that includes I, aVL, V5, and V6.

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